Bug Description

When wanting to edit the configuration of a mobile broadband connection, an error message appears:
Title: Error initialising editor
Text: nm-settings-connection.c.839 - Connection didn't have requested setting 'ppp'.
Note that this is a broadband connection that otherwise works perfectly well. See the attached screenshot for more details.

Steps to reproduce:
1. Open the network menu in the top panel,
2. Click on "Edit Connections..."
3. Select the "Mobile Broadband" tab
4. Select the first entry in the list
5. Click "Edit..."

network-manager - 0.9.3.995+git201203081848.bba834f-0ubuntu1~mtrudel2 has been uploaded to the ~ubuntu-desktop PPA; it will be build and become available in the next few hours. It would be helpful if those who are seeing this error could test this package: I've included a patch from upstream that appears to solve the issue; along with a bunch of additional changes that we want to land in Precise. See https://launchpad.net/~ubuntu-desktop/+archive/ppa

Please don't hesitate to report here with whether things work for you or not with that updated package :)